docs: def create_bulk(self, resource, timeout=-1):
          """
          Creates bulk Ethernet networks.
  
          Args:
              resource (dict): Specifications to create in bulk.
              timeout:
                  Timeout in seconds. Wait for task completion by default. The timeout does not abort the operation
                  in OneView; it just stops waiting for its completion.
  
          Returns:
              list: List of created Ethernet Networks.
  
          """
          uri = self.URI + '/bulk'
          default_values = self._get_default_values(self.BULK_DEFAULT_VALUES)
          updated_data = self._helper.update_resource_fields(resource, default_values)
  
          self._helper.create(updated_data, uri=uri, timeout=timeout)
  
          return self.get_range(resource['namePrefix'], resource['vlanIdRange'])